FF 5.9A Interdependency Set C GE

A student observes a brown pelican flying over water. The pelican dives down into the water to scoop up a fish in its large throat pouch.

Based on these observations, which statement gives the most important reason why pelicans need to live near water?

• Pelicans move around by swimming through water.

• Pelicans depend on food sources found in water.

• Pelicans use warm water to hatch their eggs.

• Pelicans live in plants that grow near water.

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A student is making a model. The title of her model is shown below.

The student could use all of the following as a model of a predator in her ecosystem EXCEPT –

• White-lipped frog

• Red-eared slider turtle

• Cottonmouth snake

• Eastern gray squirrel

A classroom aquarium is shown below.

What non-living element in the aquarium helps the fish survive?

• Plants

• Small rocks

• Carbon dioxide

• Oxygen

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The picture below shows an ecosystem that is home to many organisms.

Which of the following changes to the ecosystem would be most harmful to the organisms that live there?

• An increase in the number of birds that live in the ecosystem

• An increase in the level of precipitation in the ecosystem

• A group of students walking through the ecosystem while recording their observations

• Construction of a new shopping center near the ecosystem

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A geologist goes on a field investigation. The geologist finds the following fossils.

Based on the information in the picture, what conclusion can be made about the area where the fossil was found?

• It is underwater.

• It was underwater at the time the fossil formed.

• It is currently home to fish that can breathe air.

• It was home to fish that could breathe air at the time the fossil formed.

A student wants to help with the habitat restoration of a field that experienced a devastating fire. He researches plants to see what type of plants can be grown in the field. Before planting anything, what is the next step he should take?

• Research the cost of each plant

• Research the plants to see which are producers

• Research the plants to see which are native species to the area

• Research the plants to see which will attract butterflies to the area

A student puts the following living organisms and non-living objects in an aquarium.

Which statement describes an interaction between the fish and a living part of their environment that is necessary for fish survival?

• The fish eat the plants.

• Bacteria remove substances that could harm the fish.

• The fish absorb oxygen from water.

• The light provides energy for the fish to grow.

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In 1995, authorities started releasing wild wolves in Yellowstone National Park, an area where wolf populations had been reduced to zero. Wolves’ most common prey animals are plant-eaters like deer and elk. The wolf population quickly began increasing. How did this change most likely affect plants in the park?

• Plant populations began to recover from over-grazing.

• Plant disease spread more rapidly through the park.

• A wider variety of animals began to rely on plants for food.

• A wider variety of plants began to grow in the park.

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Orcas are a type of whale. These whales are found in all the world’s oceans,

from the cold Arctic and Antarctic to the much warmer tropical seas. Orcas are predators and have a diverse diet. Many orcas feed exclusively on fish and prey on over 30 different types. Other orcas feed on sea lions, seals, walruses, or even larger whales. They are sometimes called wolves of the sea, because they often hunt in groups like wolf packs. They have no natural predators themselves.

Orcas live in groups called pods which can be considerably large. Like all other marine mammals, they need to come up to the surface of the water to breathe. They breathe through a hole on the top of their heads called a blow hole.

Which of these is the main reason why orcas can be found in every ocean in the world?

• Their coloring protects them from predators.

• Their diverse diet enables them to live in different oceans.

• They are able to breathe by coming to the ocean’s surface.

• They hunt in groups and live in pods.

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This photo shows a wetland ecosystem.

A company proposes building a hotel near this ecosystem. Which result is the construction process most likely to cause?

• Chemical pollution and debris will harm organisms in the lake.

• Humans will provide food that causes wildlife populations to grow.

• More migratory birds will begin to use this location to rest.

• Alterations to the water cycle will force organisms to adapt.

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